What is the cheapest airline that flies from United States to Northern Ireland?

British Airways and Delta are the most popular carriers operating from United States to Northern Ireland

What airlines fly to Northern Ireland?

British Airways, American Airlines and Delta are the top three most popular airlines that fly to Northern Ireland from United States according to our data. British Airways is the first choice among our users, with 88% of people opting to fly with this airline when traveling to Northern Ireland. Keep in mind that there are 3 different airlines that fly to Northern Ireland on a routine basis, so you have a few additional options to choose from.

How long is the flight from United States to Northern Ireland?

Flight times vary depending on what airport in United States you fly out of and what airport in Northern Ireland you fly into. For example, flying from Boston to Belfast Intl Airport takes 9h 35m on average. On the other hand, flying from New York to Belfast Intl Airport takes 10h 35m on average. Keep in mind that it’s always quicker to opt for a non-stop flight, so be sure to check momondo if there are any available for your route.

When did momondo last update prices for flights from United States to Northern Ireland?

Prices for flights from United States to Northern Ireland were last updated today.

How many operators does momondo search for flights from United States to Northern Ireland?

As of April 2026, there are 2 operators available to choose from for flights from United States to Northern Ireland.

How old do you have to be to fly from United States to Northern Ireland?

The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from United States to Northern Ireland.

What documentation or ID do you need to fly to Northern Ireland?

The travel and health documents required for your trip to Northern Ireland can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Northern Ireland. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

$280 Cheap Flights from the United States to Northern Ireland in 2026

1 adult

0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from the United States to Northern Ireland

Round-trip

One-way

Last minute

Recent round-trip flight deals from the United States to Northern Ireland

Enter your travel dates to find the best prices.

6:20 pm - 3:20 pm

JFK

BFS

16h 00m

1 stop

2:50 pm - 3:55 pm

BFS

JFK

30h 05m

1 stop

$622Multiple Airlines

Thu, Oct 15 - Thu, Oct 22

6:20 pm - 3:20 pm

JFK

BFS

16h 00m

1 stop

8:15 pm - 3:55 pm

BFS

JFK

24h 40m

1 stop

$661Multiple Airlines

Thu, Oct 15 - Wed, Oct 21

6:20 pm - 8:55 pm

JFK

BFS

21h 35m

1 stop

8:20 am - 3:55 pm

BFS

JFK

12h 35m

1 stop

$667Multiple Airlines

Tue, Oct 13 - Tue, Oct 20

6:20 pm - 12:20 pm

JFK

BFS

13h 00m

1 stop

2:50 pm - 3:55 pm

BFS

JFK

30h 05m

1 stop

$668Multiple Airlines

Sun, Oct 11 - Thu, Oct 22

8:55 pm - 8:35 pm

LAX

BHD

15h 40m

1 stop

11:35 am - 6:20 pm

BHD

LAX

14h 45m

1 stop

$868British Airways

Mon, Aug 10 - Wed, Aug 19

8:55 pm - 6:45 pm

LAX

BHD

13h 50m

1 stop

6:30 am - 6:20 pm

BHD

LAX

19h 50m

1 stop

$880British Airways

Mon, Aug 10 - Thu, Aug 20

6:10 pm - 5:30 pm

LAX

BHD

15h 20m

1 stop

4:35 pm - 11:30 am

BHD

LAX

26h 55m

1 stop

$883American Airlines

Mon, Aug 10 - Thu, Aug 20

6:10 pm - 5:30 pm

LAX

BHD

15h 20m

1 stop

6:30 am - 4:37 pm

BHD

LAX

18h 07m

2 stops

$893American Airlines

Mon, Aug 10 - Thu, Aug 20

2:00 pm - 9:20 am

LGA

BHD

14h 20m

2 stops

9:50 am - 8:31 pm

BHD

LGA

15h 41m

2 stops

$949KLM

Tue, Oct 13 - Wed, Oct 21

2:00 pm - 9:20 am

LGA

BHD

14h 20m

2 stops

9:50 am - 8:31 pm

BHD

LGA

15h 41m

2 stops

$951KLM

Mon, Oct 12 - Tue, Oct 20

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British Airways flights from United States to Northern Ireland

Our best British Airways deals on United States to Northern Ireland flight tickets

British Airways

Aug 10

LAX8:55 pmLos Angeles

15h 40m

1 stop

BHD8:35 pmBelfast City

Aug 19

BHD11:35 amBelfast City

14h 45m

1 stop

LAX6:20 pmLos Angeles

$868

British Airways

Aug 10

LAX8:55 pmLos Angeles

13h 50m

1 stop

BHD6:45 pmBelfast City

Aug 20

BHD6:30 amBelfast City

19h 50m

1 stop

LAX6:20 pmLos Angeles

$880

British Airways

Sep 15

LAX12:55 pmLos Angeles

18h 25m

2 stops

BHD3:20 pmBelfast City

Sep 30

BHD10:05 amBelfast City

16h 15m

1 stop

LAX6:20 pmLos Angeles

$890

American Airlines flights from United States to Northern Ireland

Our best American Airlines deals on United States to Northern Ireland flight tickets

American Airlines

Aug 10

LAX6:10 pmLos Angeles

15h 20m

1 stop

BHD5:30 pmBelfast City

Aug 20

BHD4:35 pmBelfast City

26h 55m

1 stop

LAX11:30 amLos Angeles

$883

American Airlines

Aug 10

LAX6:10 pmLos Angeles

15h 20m

1 stop

BHD5:30 pmBelfast City

Aug 20

BHD6:30 amBelfast City

18h 07m

2 stops

LAX4:37 pmLos Angeles

$893

American Airlines

Apr 29

JFK7:20 pmNew York John F Kennedy Intl

11h 40m

1 stop

BHD12:00 pmBelfast City

May 6

BHD10:05 amBelfast City

11h 55m

1 stop

JFK5:00 pmNew York John F Kennedy Intl

$916

momondo Fare Finder

Use the filters below to find and compare flights from the United States to Northern Ireland that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

New YorkBelfast

JFK - BFS

JFKBFS

New York John F Kennedy Intl

Thu 10/15

6:20 pm-3:20 pm

1 stop16h 00m

Belfast Intl

Thu 10/22

2:50 pm-3:55 pm

1 stop30h 05m

$622

New YorkBelfast

JFK - BFS

JFKBFS

New York John F Kennedy Intl

Thu 10/15

6:20 pm-3:20 pm

1 stop16h 00m

Belfast Intl

Wed 10/21

8:15 pm-3:55 pm

1 stop24h 40m

$661

New YorkBelfast

JFK - BFS

JFKBFS

New York John F Kennedy Intl

Tue 10/13

6:20 pm-8:55 pm

1 stop21h 35m

Belfast Intl

Tue 10/20

8:20 am-3:55 pm

1 stop12h 35m

$667

New YorkBelfast

JFK - BFS

JFKBFS

New York John F Kennedy Intl

Sun 10/11

6:20 pm-12:20 pm

1 stop13h 00m

Belfast Intl

Thu 10/22

2:50 pm-3:55 pm

1 stop30h 05m

$668

Los AngelesBelfast

LAX - BHD

LAXBHD

Los Angeles

Mon 8/10

8:55 pm-8:35 pm

1 stop15h 40m

Belfast City

Wed 8/19

11:35 am-6:20 pm

1 stop14h 45m

$868

Los AngelesBelfast

LAX - BHD

LAXBHD

Los Angeles

Mon 8/10

8:55 pm-6:45 pm

1 stop13h 50m

Belfast City

Thu 8/20

6:30 am-6:20 pm

1 stop19h 50m

$880

Los AngelesBelfast

LAX - BHD

LAXBHD

Los Angeles

Mon 8/10

6:10 pm-5:30 pm

1 stop15h 20m

Belfast City

Thu 8/20

4:35 pm-11:30 am

1 stop26h 55m

$883

Los AngelesBelfast

LAX - BHD

LAXBHD

Los Angeles

Mon 8/10

6:10 pm-5:30 pm

1 stop15h 20m

Belfast City

Thu 8/20

6:30 am-4:37 pm

2 stops18h 07m

$893

Quickest round-trip

New YorkBelfast

LGA - BHD

LGABHD

New York LaGuardia

Tue 10/13

2:00 pm-9:20 am

2 stops14h 20m

Belfast City

Wed 10/21

9:50 am-8:31 pm

2 stops15h 41m

$949

New YorkBelfast

LGA - BHD

LGABHD

New York LaGuardia

Mon 10/12

2:00 pm-9:20 am

2 stops14h 20m

Belfast City

Tue 10/20

9:50 am-8:31 pm

2 stops15h 41m

$951

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from United States to Northern Ireland

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

Other information

Can stopping save me money on United States to Northern Ireland flights?

You could potentially save up to 16% on your flight if you consider stops on a United States to Northern Ireland flight.

Cheap United States to Northern Ireland flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from United States to Northern Ireland

Fastest flight time	9h 35m
Direct flights	None

The fastest flight from United States to Northern Ireland takes 9h 35m

There are no direct flights from United States to Northern Ireland. There are no popular flight routes from United States to Northern Ireland.

Search flight deals

Frequently asked questions about flying from the United States to Northern Ireland

When did momondo last update prices for flights from United States to Northern Ireland?
Prices for flights from United States to Northern Ireland were last updated today.
How many operators does momondo search for flights from United States to Northern Ireland?
As of April 2026, there are 2 operators available to choose from for flights from United States to Northern Ireland.
How old do you have to be to fly from United States to Northern Ireland?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from United States to Northern Ireland.
What documentation or ID do you need to fly to Northern Ireland?
The travel and health documents required for your trip to Northern Ireland can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Northern Ireland. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Best airlines flying from United States to Northern Ireland

Compare and see reviews for airlines that fly from United States to Northern Ireland with momondo

Airline	Rating	Free Cancellation	Price
American Airlines	PriceFrom $504	Free Cancellation	Rating 7.1 11,608 reviews		Search American Airlines flights
British Airways	PriceFrom $534	Free Cancellation	Rating 6.7 7,891 reviews		Search British Airways flights

Why use momondo?

Why should I use momondo to find a flight deal from United States to Northern Ireland?

Finding the right flight to Northern Ireland from United States is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Northern Ireland quick and easy, saving you time and money.

Can I find flights from United States to Northern Ireland with flexible booking policies on momondo?

Flights from United States to Northern Ireland with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from United States to Northern Ireland?

Once you have performed a search for United States to Northern Ireland flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from United States to Northern Ireland right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of United States to Northern Ireland flights. All you need is a valid email address and we will do the rest; it is that quick and easy.